How to manage Terraform at scale?

There will come a time when your Terraform codebase grows. Preparing for that moment is critical.

Here are 9 best practices to help you manage Terraform at scale:

1- Use modules to keep your code DRY, reusable, and easier to manage.

2- Leverage loops and dynamic blocks to reduce repetition and handle different environments more efficiently.

3- Validate variables to catch bad inputs before they cause problems.

4- Manage state remotely with locking enabled for safe team collaboration.

5- Scan for security issues using tools like Checkov, tfsec, or Terrascan.

6- Enforce policies with Open Policy Agent (OPA) to maintain compliance and consistency.

7- Lint your code to catch syntax errors and outdated practices early.

8- Test configurations using Terratest or Kitchen-Terraform before deploying to production.

9- Keep documentation updated with tools like Terraform-docs.

These steps help you keep your infrastructure reliable, secure, and easier to scale.

What’s one Terraform best practice you swear by?